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Table 1 Correlations between the SF-36 index, FEV1 and the physicians' ratings of the patients' health status.

From: Measuring health-related quality of life in patients with chronic obstructive pulmonary disease in a routine hospital setting: Feasibility and perceived value

SF-36 index FEV1 Physicians' rating 1)
Physical functioning 0.19 NS 0.55 ***
Physical role 0.06 NS 0.40 **
Pain - 0.19 NS 0.29 *
General health - 0.01 NS 0.36 **
Vitality - 0.06 NS 0.35 **
Social functioning 0.02 NS 0.40 **
Emotional role 0.10 NS 0.29 *
Mental health 0.10 NS 0.40 **
FEV1 1.00 0.18 NS
Physician's rating 0.18 NS 1.00
  1. NS = Non significant, * = P < 0.05, ** p < 0.01, *** p < 0.001 1) Single question evaluation of the patients' general health on a 5-point scale from excellent to poor.